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软土的振动排水固结特性试验研究

苗永红, 李瑞兵, 陈邦

苗永红, 李瑞兵, 陈邦. 软土的振动排水固结特性试验研究[J]. 岩土工程学报, 2016, 38(7): 1301-1306. DOI: 10.11779/CJGE201607018
引用本文: 苗永红, 李瑞兵, 陈邦. 软土的振动排水固结特性试验研究[J]. 岩土工程学报, 2016, 38(7): 1301-1306. DOI: 10.11779/CJGE201607018
MIAO Yong-hong, LI Rui-bing, CHEN Bang. Laboratory tests on consolidation behavior of soft soils under vibration drainage conditions[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(7): 1301-1306. DOI: 10.11779/CJGE201607018
Citation: MIAO Yong-hong, LI Rui-bing, CHEN Bang. Laboratory tests on consolidation behavior of soft soils under vibration drainage conditions[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(7): 1301-1306. DOI: 10.11779/CJGE201607018

软土的振动排水固结特性试验研究  English Version

基金项目: 国家自然科学基金项目(11272137); 江苏省六大高峰人才项目(2014JZ011)
详细信息
    作者简介:

    苗永红(1973- ),男,副教授,硕士生导师,主要从事岩土工程勘察、设计、监测等相关领域的研究。E-mail: yhmiao@ujs.edu.cn。

Laboratory tests on consolidation behavior of soft soils under vibration drainage conditions

  • 摘要: 以江苏镇江某现场软土为研究对象,室内利用自主设计的动态固结渗透仪模拟饱和软土在振动荷载作用下的响应。在不同排水条件、围压、静荷载、振动荷载和频率下进行排水固结试验,并同单一的静压排水固结试验进行对比,重点分析试验过程中的动应变和固结排水效应,探讨软土的动力固结排水机理。试验结果表明,振动作用可以明显地提高排水速度,增加排水量;固结压力、振动荷载和频率对软土的振动排水效应产生显著的影响。试验结果和振动排水的机理分析,对当前软土地基处理及其施工工艺设计具有重要的实用价值和指导意义。
    Abstract: The consolidation characteristics of soft soils taken from one site in Zhenjiang City under vibration drainage conditions are investigated. A series of laboratory tests are conducted on the saturated soft soils by using the self-developed dynamic consolidation oedometer. The dynamic consolidation tests are carried out considering the effects of different static loads, confining pressures, vibration loads and frequencies and they are compared with hydrostatic consolidation tests. The dynamic response of strain and consolidation drainage during the tests are focused, and the drainage mechanism is thereafter analyzed. The test results indicate that the vibration process can significantly improve the drainage speed and increase the displacement of consolidation. The drainage for soft soil is evidently affected by the confining pressure, vibration load and frequency. The analysis of tests results and its mechanism is of great importance and practical value for improving the existing foundation treatment techniques.
  • [1] 薛 茹, 李广慧. 动力排水固结法加固软土地基的模型试验研究[J]. 岩土力学, 2011, 32(11): 3242-3248. (XUE Ru, LI Guang-hui. Study of model tests of soft soil foundation by dynamic drainage consolidation[J]. Rock and Soil Mechanics, 2011, 32(11): 3242-3248. (in Chinese))
    [2] 经 绯, 刘松玉, 邵光辉. 软土地基上路堤沉降变形特征分析[J]. 岩土工程学报, 2001, 23(6): 728-730. (JING Fei, LIU Song-yu, SHAO Guang-hui. The settlement of embankment on soft ground[J]. Chinese Journal of Geotechnical Engineerin, 2001, 23(6): 728-730. (in Chinese))
    [3] 刘勇健, 李彰明, 张丽娟. 动力排水固结法在大面积深厚淤泥软基加固处理中的应用[J]. 岩石力学与工程学报, 2010, 29(增刊2): 4000-4007. (LIU Yong-jian, LI Zhang-ming, ZHANG Li-juan. Application of dynamic drainage consolidation method to reinforcement and treatment of deep and thick silt foundation of large area[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(S2): 4000-4007. (in Chinese))
    [4] WESTERMARK R V, BRETT J F, MALONEY D R. Using downhole vibration stimulation for enhanced oil recovery[J]. World Oil, 2001, 222(10): 57-66.
    [5] KOUZNETSOV O L, SIMKIN E M, CHLINGAR G V, et al. Improved oil recovery by application of vibro-energy to waterflooded sandstones[J]. Journal of Petroleum Science and Engineering, 1998, 19(3): 191-200.
    [6] 雷学文, 白世伟, 孟庆山. 动力排水固结法的加固机理及工艺特征[J]. 岩土力学, 2004, 25(4): 637-639. (LEI Xue-wen, BAI Shi-wei, MENG Qing-shan. Mechanism and technology characteristics of dynamic consolidation by drainage[J]. Rock and Soil Mechanics, 2004, 25(4): 637-639. (in Chinese))
    [7] 张大军, 李彰明, 刘俊雄. 超软土地基静动力排水固结法处理的竖向排水体系影响因素分析[J]. 施工技术, 2014, 43(2): 97-100. (ZHANG Da-jun, LI Zhang-ming, LIU Jun-xiong. Study on vertical drainage system of static-dynamic drainage consolidation method for super soft soil foundation[J]. Construction Technology, 2014, 43(2): 97-100. (in Chinese))
    [8] MENARD L, BROISE Y. Theoretical and practical aspects of dynamic consolidation[J]. Géotechnique, 1975, 23(1): 3-18.
    [9] OSIPOV V L, NIKOLAEVA S K, SOKOLOV V N. Microstructural change associated with thixtropic phenomena in clay soils[J]. Géotechnique, 1984, 34(3): 293-303.
    [10] HANSBO S. Dynamic consolidation of mixed fill-acost- effective alternative to piling a case record[J]. Géotechnique, 1996, 46(2): 351-356.
    [11] 白 冰, 周 健, 曹宇春. 冲击荷载作用下软黏土变形和孔压的若干问题[J]. 同济大学学报, 2001, 29(3): 269-272. (BAI Bing, ZHOU jian, CAO Yu-chun. Some problems on the deformation and pore pressure of soft clay under impact loading[J]. Journal of Tongji University, 2001, 29(3): 269-272. (in Chinese))
    [12] 李彰明, 张丽娟. 动静力排水固结法在淤泥质地基处理工程中的应用[J]. 岩土力学, 2009, 27(5): 898-903. (LI Zhang-ming, ZHANG Li-juan. The application of dynamic-static drainage consolidation method on a silt ground disposal project of Guangzhou[J]. Rock and Soil Mechanics, 2009, 27(5): 898-903. (in Chinese))
    [13] 张季超, 梁永康. 动力排水固结法处理软土地基的关键技术研究[J]. 施工技术, 2012, 41(3): 42-45. (ZHANG Ji-chao, LIANG Yong-kang. Study on the key construction technology of dynamic consolidation by drainage for soft soil ground[J]. Construction Technology, 2012, 41(3): 42-45. (in Chinese))
    [14] 胡 华. 含水率对软土流变参数的影响特性及其机理分析[J]. 岩土工程学报, 2005, 19(3): 134-136. (HU Hua. The influencing characteristics and mechanism of water content on rheological parameters of soft-soil[J]. Geotechnical Engineering Technique, 2005, 19(3): 134-136. (in Chinese))
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出版历程
  • 收稿日期:  2015-07-08
  • 发布日期:  2016-07-24

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